iC-HB

TRIPLE 155 MHz LASER SWITCH

Rev A4, Page 1/8

FEATURES

o Laser switch for frequencies from CW up to 155 MHz

o Spike-free switching of the laser currents

o Three channels with independent current control at pins CIx

o Operates as a voltage-controlled current sink

o LVDS/TTL switching inputs with TTL monitor outputs

o Pulsed operation with up to 300 mA per channel

o CW operation with up to 65 mA per channel

o Laser current monitor output

o Thermal shutdown with open drain error output

o Protective ESD circuitry

APPLICATIONS

o Laser printers

o Data transmission

o Laser scanning devices

PACKAGES

QFN24

4 mm x 4 mm

BLOCK DIAGRAM

LVDS/TTL

LVDS/TTL

1k

1k

iC−HB

1k

LVDS/TTL

OVERTEMP

SHUTDOWN

IK1

IKB

IK2

CIB

CI2

CI1

LDK2

AGND2

AGND1

IMON

LDK1

AGNDB

LDKB

NER

GND

VDD VTTL

SYNB

EN2

EP2

SYN1

EN1

EP1

TTL

SYN2

EPB

ENB

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